Measure the distance along each side of the oven - from the top to bottom edge of the cabinet cutout. Note the measurements on the reference sheet. If you can, measure depth of the cabinet cutout from the front edge to the back wall.
Antidisestablishmentarianism is a splendid example of a word that people enjoy for some reason other than its ostensibly intended use; they like it because it is a very long word. Merriam-Webster does not define the word, on the grounds that very few people (if any) ever use it, except as an example of a long word.
The Puritan movement referred to the desire and goal of purifying the Church of England and Roman Catholic Church from within, in contrast to Separatists such as the Pilgrims, who believed that the established churches could not be reformed and the only hope was to set up separate churches.